We never want to start a race with a dirty bike. That's why the Road, Tri, and CX Bike Cover by Zeal Pro is an essential item for transporting our rides. The Zeal Pro bike bag is constructed from neoprene and nylon for protection and has been tested on road bikes from 48- to 63-centimeters. Easily transport bikes on a car's rear hitch rack and protect it from the weather on the way to a race or on long trips.